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Ji-Yong Um
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2020 – today
- 2024
- [j7]Young-Chan Lee, Doo-Hyeon Ko, Min-Hyeong Son, Se-Hwan Yang, Ji-Yong Um:
Arterial Distension Monitoring Scheme Using FPGA-Based Inference Machine in Ultrasound Scanner Circuit System. IEEE Trans. Biomed. Circuits Syst. 18(3): 702-713 (2024) - 2023
- [j6]Doo-Hyeon Ko, Young-Chan Lee, Ji-Yong Um:
Center Frequency Tracking Scheme to Optimize Pulse-Echo Response of Ultrasonic A-mode Scanner Circuit System. IEEE Access 11: 14524-14532 (2023) - [c6]Chang-Su Lee, Ji-Yong Um, Mi-Hyang Jeon:
Design and implementation of autonomous collaboration service between IoT using distributed platform. ICUFN 2023: 864-868 - 2022
- [j5]Ji-Yong Um:
A Compact Variable Gain Amplifier With Continuous Time-Gain Compensation Using Systematic Predistorted Gain Control. IEEE Trans. Circuits Syst. II Express Briefs 69(2): 274-278 (2022) - [c5]Min-Hyeong Son, Young-Chan Lee, Hyun-Min Baek, Hyo-Jeong Choi, Ji-Yong Um:
A Programmable Gain Amplifier with Fast Transient Response for Medical Ultrasound System. ISOCC 2022: 302-303
2010 – 2019
- 2017
- [j4]Yoon-Jee Kim, Sung-Eun Cho, Ji-Yong Um, Min-Kyun Chae, Jihoon Bang, Jongkeun Song, Taeho Jeon, Byungsub Kim, Jae-Yoon Sim, Hong-June Park:
A Single-Chip 64-Channel Ultrasound RX-Beamformer Including Analog Front-End and an LUT for Non-Uniform ADC-Sample-Clock Generation. IEEE Trans. Biomed. Circuits Syst. 11(1): 87-97 (2017) - 2015
- [j3]Ji-Yong Um, Yoon-Jee Kim, Seong-Eun Cho, Min-Kyun Chae, Byungsub Kim, Jae-Yoon Sim, Hong-June Park:
A Single-Chip 32-Channel Analog Beamformer With 4-ns Delay Resolution and 768-ns Maximum Delay Range for Ultrasound Medical Imaging With a Linear Array Transducer. IEEE Trans. Biomed. Circuits Syst. 9(1): 138-151 (2015) - [c4]Peter Ahn, Ji-Yong Um, Eunjung Choi, Hyunmook Park, Jaseung Gou, Kwangjun Cho, Kangbong Seo, Sangdong Yoo:
Power noise rejection and device noise analysis at the reference level of ramp ADC. IMSE 2015: 94030M - 2014
- [j2]Ji-Yong Um, Yoon-Jee Kim, Seong-Eun Cho, Min-Kyun Chae, Jongkeun Song, Bae-Hyung Kim, Seung-Hun Lee, Jihoon Bang, Youngil Kim, Kyungil Cho, Byungsub Kim, Jae-Yoon Sim, Hong-June Park:
An Analog-Digital Hybrid RX Beamformer Chip With Non-Uniform Sampling for Ultrasound Medical Imaging With 2D CMUT Array. IEEE Trans. Biomed. Circuits Syst. 8(6): 799-809 (2014) - [c3]Ji-Yong Um, Eun-Woo Song, Yoon-Jee Kim, Seong-Eun Cho, Min-Kyun Chae, Jongkeun Song, Bae-Hyung Kim, Seunghun Lee, Jihoon Bang, Youngil Kim, Kyungil Cho, Byungsub Kim, Jae-Yoon Sim, Hong-June Park:
24.8 An analog-digital-hybrid single-chip RX beamformer with non-uniform sampling for 2D-CMUT ultrasound imaging to achieve wide dynamic range of delay and small chip area. ISSCC 2014: 426-427 - 2013
- [j1]Ji-Yong Um, Yoon-Jee Kim, Eun-Woo Song, Jae-Yoon Sim, Hong-June Park:
A Digital-Domain Calibration of Split-Capacitor DAC for a Differential SAR ADC Without Additional Analog Circuits. IEEE Trans. Circuits Syst. I Regul. Pap. 60-I(11): 2845-2856 (2013) - 2011
- [c2]Ji-Yong Um, Jae-Hwan Kim, Jae-Yoon Sim, Hong-June Park:
Digital-domain calibration of split-capacitor DAC with no extra calibration DAC for a differential-type SAR ADC. A-SSCC 2011: 77-80 - [c1]Jae-Hwan Kim, Ji-Yong Um, Jae-Yoon Sim, Hong-June Park:
Time-interleaved sample clock generator for ultrasound beamformer application. ISOCC 2011: 290-293
Coauthor Index
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